US8396623B2ActiveUtilityA1

Driver recorder and method for setting up the driver recorder

85
Assignee: MAEDA MUNENORIPriority: Sep 28, 2007Filed: Sep 26, 2008Granted: Mar 12, 2013
Est. expirySep 28, 2027(~1.2 yrs left)· nominal 20-yr term from priority
G07C 5/0891G07C 5/0858
85
PatentIndex Score
43
Cited by
33
References
5
Claims

Abstract

An object of the invention is to provide a drive recorder that can detect acceleration so that the acceleration exerted on a vehicle traveling around a curve will not be erroneously detected as excessive acceleration, as long as the steering wheel is operated in a usual manner. More particularly, the invention provides a drive recorder that includes an acceleration sensor for detecting a first acceleration along a traveling direction of a vehicle and a second acceleration along a transverse direction of the vehicle, and a control unit which obtains a combined acceleration based on the first acceleration and on a value obtained by subtracting a correction value from the absolute value of the second acceleration, and when the combined acceleration exceeds a threshold value, records video information received from an image capturing unit onto a recording device.

Claims

exact text as granted — not AI-modified
1. A drive recorder comprising:
 a sensor for detecting a first acceleration along a traveling direction of a vehicle and a second acceleration along a transverse direction of said vehicle; 
 a determining unit configured to determine whether the vehicle is traveling around a curve when the vehicle is traveling; and 
 a control unit configured to obtain a combined acceleration based on said first acceleration and a value obtained by subtracting a correction value from an absolute value of said second acceleration when the determining unit determines the vehicle is traveling around a curve, and when said combined acceleration exceeds a threshold value, to record video information received from an image capturing unit, in a recording device. 
 
     
     
       2. The drive recorder according to  claim 1 , wherein the determining unit determines whether said vehicle is traveling around a curve on the basis of a current position information of the vehicle, or a steering angle of the vehicle. 
     
     
       3. The drive recorder according to  claim 1 , further comprising a vehicle speed sensor for detecting vehicle speed, and wherein
 said control unit changes said correction value in accordance with the vehicle speed detected by said vehicle speed sensor. 
 
     
     
       4. A drive recorder comprising:
 a control unit configured to determine whether a recording condition is established, on the basis of a signal from a sensor which detects an acceleration of a vehicle, and a threshold; and 
 a determining unit configured to determine whether the vehicle is traveling around a curve, when the vehicle is traveling, wherein when the determining unit determines the vehicle is traveling around a curve, the control unit adjusts the relationship between the signal and the threshold. 
 
     
     
       5. A drive recorder comprising:
 a control unit configured to determine whether a recording condition is established on the basis of a signal from a sensor which at least detects an acceleration of a vehicle along a transverse direction of the vehicle, and a threshold; and 
 a determining unit for determining as to whether the vehicle is traveling around a curve when the vehicle is traveling or not, wherein when the determining unit determines the vehicle is traveling around a curve, the control unit adjusts a detection sensitivity of the sensor more sensitive than a detection sensitivity of the sensor when the vehicle is not traveling around a curve.

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